Just about everything involves some risk, whether it's crossing the road, eating a pizza or climbing a mountain. But just how much are you risking with your everyday decisions?

Some risks are overblown, others are worse than we could ever imagine. Our fears of risk are played on by politicians and the media now more than ever.

On a mission to help us assess risk for ourselves, filmmaker Robert Lang is investigating how we measure and cope with risk in our modern times. He travels across the globe meeting the world’s top risk experts, from a Cambridge University statistician to an extreme ice climber, to discover the truth about the risks we face everyday.